Neighbors said at least one dog died after drinking the nasty water. People said they are convinced the foul sheen is oil from a spill somewhere.

"My children, you know they're just kids, when they smell that it might infect their brain, I don't know," Avery Estates resident Joseph Migliore said.

St. Tammany Parish Emergency Operations Director Dexter Accardo said a host of agencies, including the Coast Guard, have investigated the horrid-smelling gunk that covered the ground, killing grass and trees.

"The U.S. Coast Guard is advising me that it is not an oil sheen. It is decaying vegetation," St. Tammany Emergency Director Dexter Accardo said. "DEQ sent out at team and EPA sent out a team, and all of them concluded it was not oil, that it was salt water intrusion."

Meanwhile, no one is taken any chances and many said they feel forgotten. They want the experts to come out and talk with them.

"We all have wells out here. The water comes from the ground, and we're worried about all of this seeping into the ground," Avery Estates resident Ann Alvarez said.

"They really need to get out here and test the waters, and do more towards our community and Avery Estates and on the highway, because we are always forgotten about," Williams said.

The big concern now is the health of families around here and even the drinking.